Role of mapping methods in the classification of irrigated geosystems of Mirzachul

To assess the movement of salts within the basin geosystem Sanzar (Uzbekistan, Mirzachul), streams (according to I.N. Stepanov) were established and shown on the map, which are the natural elementary space-time structure of the earth's crust surface. Streams are distinguished by geometric transformation of topographic maps isohypsum using the method of second derivatives. For the first time in the basin-geosystem Sanzar, the boundaries of runoff areas with areas of formation, transit and accumulation of water, salts and fine earth were identified. The map shows geochemical conjugate divergent and convergent territories, that is, elevations, easily desolate territories and areas of depressions, natural salt reservoirs.